June, 1903.] Coleman: CocciD.t of the Conifer.^. 73 



Physokermes concolor, sp. no\ . 



July 31, 1901, the author found on the white f\r {Abies concohr), 

 near the summit of the Salmon Mts., west of Salmon Forks, Siskiyou 

 Co., California, three specimens of the female of a Physokermes and 

 later the young were obtained from these specimens. 



While the young of this species is essentially the same as that of 

 P. taxifoUce and P. insignicola, the adults are very much lighter in 

 color, being very light brown or fulvous and in the live state marked 

 with a dark line along the dorso-median groove. Antennse in mi- 

 crons, 120, 150, 150, 80, 70, 200, formula, 6 (2, 3), i, 5, 4. 



XoTE. — The differences in these two species and in comparison 

 with P. insignicola are very hard to describe and yet with the three 

 species before me I feel that they should be separated. 



Type specimens in the entomological collection of Stanford Uni- 

 versity. 



Species of Coccid^ found on Coniferous Hosts in California, 



WITH Locality. 



Eriococcus araucarias Mask. On Araucaria excelsior, Hopkins 



Place, Menlo Park. (Introduced.) 

 Phenacoccus kuwanae, sp. nov. On Picea breweriana, Salmon 



Mts., near Salmon Forks, Siskiyou Co. 

 Dactylopius sequoiae Coleman. On Secjuoia sempervirens, Sierra 



Moreno Mts. and Coast Range as far north as Humbolt Co. 

 Dactylopius andersoni, sp. nov. On Cupressus goveniana, Lake 



Co. and on Lihocednis deci/rrens, Scott Valley, Siskiyou Co., and 



upper Sacramento region. 

 Dactylopius dudleyi, sp. nov. On Cupressus macnabiana, Clear 



Creek, Shasta P. O., Shasta Co. 

 Physokermes insignicola Cratv. On Pimis insignis, Stanford 



grounds. 

 Physokermes taxifolise, sp. nov. On Pseudotsuga taxi/olia, Stevens 



Creek, Sierra Moreno Mts., and all the Coast Range as far north 



as the Salmon Mts. 

 Physokermes concolor, sp. nov. On Abies concolor, Salmon Mts., 



west of Salmon Forks, Siskiyou Co. 

 Lecanium hesperidum L. On Abies concolor, Stanford arboretum. 



